/Engine/Source/Runtime/AnimGraphRuntime/Public/BoneControllers/AnimNode_ScaleChainLength.h
double GetInitialChainLength ( [FCompactPose](API\Runtime\Engine\FCompactPose) & InLSPose, [FCSPose](API\Runtime\Engine\FCSPose)< [FCompactPose](API\Runtime\Engine\FCompactPose) > & InCSPose ) const